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Trans-Neptunian object

2004 PW117

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(2004 PW117)

Where is it now

Distance from Sun
46.257 AU
True anomaly
181.71°
Distance from Earth
45.66 AU
As of
20 October 2026

Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.

Sun Earth — 0.996 AU from the Sun Earth 2004 PW117 — 46.257 AU from the Sun 2004 PW117
Seen from above the ecliptic, north up, to scale. Grid: Earth's orbit in blue. 2004 PW117 is 45.66 AU from Earth today (6.3 light-hours).

In the sky

Right ascension
22h 25m 13s
Declination
-11° 49′ 33″
Constellation
Aquarius
Distance from Earth
45.66 AU
Elongation from the Sun
126.32° — well clear of the Sun

Visible from both hemispheres.

From your location

See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.

How do I find my coordinates?

Google Maps on a computer

  1. Right-click the spot where you'll be observing.
  2. The first line of the menu is the coordinates, e.g. 51.50722, -0.12758 — click it and they're copied.
  3. Paste them above.

Google Maps on a phone

  1. Press and hold the spot to drop a pin.
  2. The coordinates appear in the search bar (or on the pin's card) — tap to copy, then paste above.

A full Google Maps link works too, but the short maps.app.goo.gl share links don't carry coordinates — copy the numbers instead. We round to about a kilometre; that's all the sky calculation needs.

Know your what3words address? Paste it, e.g. ///filled.count.soap. This is optional — the three words are sent to what3words to convert them, and we don't store the address or the result.

Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.

Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.

Orbital elements

Semi-major axis
43.535 AU
Eccentricity
0.0626
Inclination
1.86°
Orbital period
287.3 years
Perihelion
40.811 AU
Aphelion
46.259 AU
Longitude of ascending node
81.42°
Argument of periapsis
71.61°
Epoch · J2000
2461200.5
Orbit class · TNO
Trans-Neptunian object
Earth MOID · 15,497.9 LD
39.8226 AU
Tisserand (Jupiter)
5.89

Orbit quality

Orbit reasonably well determined (uncertainty code 3).

Observations used
27
Data arc
21 years
First observed
15 August 2004
Last observed
15 August 2025
Residual RMS
0.36 ″
Solution · Otto Matic
25 August 2026

Visual & observation

Absolute magnitude (H)
6.18

Discovery & classification

TNO

Sources